class_docstr: Convolutional Neural Network
  
  **Example**::
  
      >>> from avalanche.models import SimpleCNN
      >>> n_classes = 10 # e.g. MNIST
      >>> model = SimpleCNN(num_classes=n_classes)
      >>> print(model) # View model details
code: def forward(self, x):
      x = self.features(x)
      x = x.view(x.size(0), -1)
      x = self.classifier(x)
      return x
  
file_path: avalanche/avalanche/models/simple_cnn.py
imports: import torch.nn
  from avalanche.models.dynamic_modules import MultiTaskModule, MultiHeadClassifier
label_desc: Use image node_id 2 for calling the SimpleCNN obj's underlying member method code with example usage: obj.forward(x) and returns: x